Patents by Inventor Jan H. Magnusson
Jan H. Magnusson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20020036162Abstract: A cartridge based water purification and filtration system which permits cartridge changes without drainage at the input and output ports. Interlocking flanges at the manifold and cartridge lock the cartridge to the manifold and raised surfaces at the cartridge operate the inlet valve with a rotational seating of the cartridge. A spring biased inlet valve depends from a supply manifold input port and cooperates with the filter cartridge to prevent forward flow until the cartridge is seated to the manifold. The check valve includes a split stem which prevents chatter with valve operation.Type: ApplicationFiled: November 15, 2001Publication date: March 28, 2002Inventors: Jan H. Magnusson, Alan Lonneman, David M. Botts
-
Patent number: 6193884Abstract: A cartridge based water purification and filtration system which permits cartridge changes without drainage at the input and output ports. Interlocking flanges at the manifold and cartridge lock the cartridge to the manifold and raised surfaces at the cartridge operate the inlet valve with a rotational seating of the cartridge. A spring biased inlet valve depends from a supply manifold input port and cooperates with the filter cartridge to prevent forward flow until the cartridge is seated to the manifold. The check valve includes a split stem which prevents chatter with valve operation. A check valve at the output port cooperates with a sealed bayonet fitting that mates to a concentric outlet port at the cartridge to prevent back flow with cartridge removal.Type: GrantFiled: March 3, 1999Date of Patent: February 27, 2001Assignee: PentaPure IncorporatedInventors: Jan H. Magnusson, Alan Lonneman, David M. Botts
-
Patent number: 6027644Abstract: A cartridge based water purification and filtration system which permits cartridge changes without drainage at the input and output ports. Interlocking flanges at the manifold and cartridge lock the cartridge to the manifold and raised surfaces at the cartridge operate the inlet valve with a rotational seating of the cartridge. A spring biased inlet valve depends from a supply manifold input port and cooperates with the filter cartridge to prevent forward flow until the cartridge is seated to the manifold. The check valve includes a split stem which prevents chatter with valve operation. A check valve at the output port cooperates with a sealed bayonet fitting that mates to a concentric outlet port at the cartridge to prevent back flow with cartridge removal.Type: GrantFiled: December 4, 1997Date of Patent: February 22, 2000Assignee: PentaPure IncorporatedInventors: Jan H. Magnusson, Alan Lonneman, David M. Botts
-
Patent number: 5753107Abstract: A cartridge based water purification and filtration system which permits cartridge changes without drainage at the input and output ports. Interlocking flanges at the manifold and cartridge lock the cartridge to the manifold and raised surfaces at the cartridge operate the inlet valve with a rotational seating of the cartridge. A spring biased inlet valve depends from a supply manifold input port and cooperates with the filter cartridge to prevent forward flow until the cartridge is seated to the manifold. The check valve includes a split stem which prevents chatter with valve operation. A check valve at the output port cooperates with a sealed bayonet fitting that mates to a concentric outlet port at the cartridge to prevent back flow with cartridge removal.Type: GrantFiled: August 8, 1996Date of Patent: May 19, 1998Assignee: WTC Ecomaster CorporationInventors: Jan H. Magnusson, Alan Lonneman, David M. Botts
-
Patent number: 5562824Abstract: A gravity percolation water purifier assembly. The assembly includes a covered storage container having a dispensing spigot. A flanged filtration chamber is supported beneath the cover to receive untreated water. A porous filter cartridge is sealed to an outlet port. A purifier cartridge is threaded to the outlet port and supports multiple fibrous spacers and treatment chambers containing beds of treatment media, including a multi-valent iodine media, granular activated carbon, and a halogen scavenger media. In one purification cartridge, water passes from multiple inlet ports at an inlet bore through adjoining concentric chambers and to the storage container via outlet ports at the periphery of the purifier cartridge.Type: GrantFiled: October 12, 1994Date of Patent: October 8, 1996Assignee: WTC/Ecomaster CorporationInventor: Jan H. Magnusson
-
Patent number: 5474451Abstract: Dental hand tools including disposable water and air treatment cartridges. In various constructions, cartridges containing selected arrangements of disinfectant media mount to a detachable, hand tool adaptor manifold or to an integral hand tool manifold. The cartridges purify water and air discharged from the hand tool of undesired microbes and pathogens. Seals at a cartridge body retain the cartridge to the manifold and direct liquid and air flow over external surfaces of the cartridge to an interior cavity containing a halogen disinfectant media (e.g. a multi-valent iodine resin) and/or halogen scavenger media and porous spacers. A retainer may interlock the cartridge to the manifold and means may be included to prevent leaching of the disinfectant by the scavenger media. Various constructions of handpieces, syringes and scalers compatible with alternative adaptors or having integral cartridge manifolds are disclosed.Type: GrantFiled: February 2, 1994Date of Patent: December 12, 1995Assignee: Regents of the University of MinnesotaInventors: Jon Dalrymple, Leslie V. Martens, Jan H. Magnusson
-
Patent number: 5401399Abstract: A multi-section manifold system containing a number of replaceable filter and purification cartridges for treating the water supply of medical and dental facilities. The system operates to introduce increased concentrations of a preferred bactericide to the water immediately adjacent patient dispensing appliances. Control valving regulates and segregates flow through separate cartridges at the manifolds. A first manifold removes coarse particulates and sediment and exposes the water to an initial bactericide. A second manifold removes finer contaminants. A third concentrator manifold contains a bactericide cartridge having a percolation chamber which enhances the iodine concentration of the water in the range of 3 to 10 ppm at the patient dispensing apparatus. The percolation cartridge includes proximal and distal bactericide chambers which are, separated by an intermediate reservoir or percolation chamber.Type: GrantFiled: August 27, 1993Date of Patent: March 28, 1995Inventors: Jan H. Magnusson, Kristofer J. Magnusson
-
Patent number: 5273649Abstract: Low volume, personal water purification systems including cartridges containing multi-valent iodine resins, granulated active carbons, and porous separation and filtration means. In one assembly, a first section of a multi-sectioned cartridge includes an inlet, a mouthpiece and a coupler. A second section includes mating coupling means and each section includes separate filtration and/or purification media. In other assemblies, cartridges of a variety of filtration/purification organizations mount within squeezable, vented housings including straws or self-sealing outlet ports. In still other assemblies, the cartridges couple to a manifold housing.Type: GrantFiled: October 7, 1991Date of Patent: December 28, 1993Inventors: Jan H. Magnusson, Kristofer J. Magnusson
-
Patent number: 5126044Abstract: Water treatment apparatus including an iodine resin purification bed suppported in a walled structure and mounted upstream of an active carbon filtration bed. In one disposable cartridge construction, a replacable, toroidal sediment filter surrounds the purification chamber which concentrically projects from the upstream end of a larger diameter active carbon bed. In another construction, the purification bed includes a directionally permeable, replaceable, pointed housing which insertably mounts within the carbon bed. In another construction a portable housing contains a purification bed within a surrounding carbon bed, and receives water from faucet coupling means and includes a nozzle. In still another personal construction, a purification cartridge mounts between a pressurizable collector and canteen.Type: GrantFiled: September 27, 1990Date of Patent: June 30, 1992Inventors: Jan H. Magnusson, Kristofer J. Magnusson
-
Patent number: D455814Type: GrantFiled: March 8, 1999Date of Patent: April 16, 2002Assignee: PentaPure IncorporatedInventors: Jan H. Magnusson, Alan Lonneman, David M. Botts
-
Patent number: D377437Type: GrantFiled: August 14, 1995Date of Patent: January 21, 1997Assignee: WTC Industries, Inc.Inventor: Jan H. Magnusson
-
Patent number: D378883Type: GrantFiled: August 14, 1995Date of Patent: April 22, 1997Assignee: WTC Industries, Inc.Inventor: Jan H. Magnusson
-
Patent number: D433094Type: GrantFiled: July 16, 1999Date of Patent: October 31, 2000Assignee: PentaPure IncorporatedInventors: Jan H. Magnusson, Alan Lonneman, David M. Botts